期刊
EUROPEAN PHYSICAL JOURNAL C
卷 73, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-013-2530-7
关键词
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资金
- DFG cluster of excellence Origin and Structure of the Universe of Germany
We present a study of the expected precision of the top quark mass determination, measured at a linear e(+)e(-) collider based on CLIC technology. GEANT4-based detector simulation and full event reconstruction including realistic physics and beam-induced background levels are used. Two different techniques to measure the top mass are studied: The direct reconstruction of the invariant mass of the top quark decay products and the measurement of the mass together with the strong coupling constant in a threshold scan, in both cases including first studies of expected systematic uncertainties. For the direct reconstruction, experimental uncertainties around 100 MeV are achieved, which are at present not matched by a theoretical understanding on a similar level. With a threshold scan, total uncertainties of around 100 MeV are achieved, including theoretical uncertainties in a well-defined top mass scheme. For the threshold scan, the precision at ILC is also studied to provide a comparison of the two linear collider technologies.
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